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Sam_Hall's avatar
Sam_Hall
Icon for Nimbostratus rankNimbostratus
Nov 29, 2013

Looking for a way to pull offline virtual server statistics from F5 LTM

Using a one liner from the terminal or otherwise perhaps there's a way to do this with iControl, I'm looking to get the number of offline virtual servers.

 

I'm trying to come up with a way of monitoring the F5 to detect when any site(s) go down. The offline column listed in the GUI: "Statistics >> Module Statistics : Local Traffic" looks good. How do I tap into those stats?

 

devops
iControl
TMSH
  • Thomas_Gobet's avatar
    Thomas_Gobet
    Icon for Nimbostratus rankNimbostratus
    Nov 29, 2013

    Hi,

    I didn't find any "directs" commands to do it.

    But what I can suggest you is : 
    tmsh show ltm virtual | grep offline | wc -l

    You have to run this command from bash.

  • StephanManthey's avatar
    StephanManthey
    Icon for MVP rankMVP
    Aug 05, 2021

    Hi,

    the following one-liner gives you a list of all virtual servers and their current availability states: 

    tmsh -q -c 'cd /;show ltm virtual recursive' | grep -iE '(ltm::virtual|availability)' | sed ':a;N;s/\n/ /' | sed -r 's/ltm::virtual server *:? *//I; s/ *availability *:? */ /I'

    Now you can filter on the specific availability state you are looking for and count the lines: 

    tmsh -q -c 'cd /;show ltm virtual recursive' | grep -iE '(ltm::virtual|availability)' | sed ':a;N;s/\n/ /' | sed -r 's/ltm::virtual server *:? *//I; s/ *availability *:? */ /I' | grep -i offline | wc -l